Breech bolt and firing pin safety mechanism for firearms



1958 J. F. FISCHER 2,824,2

BREECH BOLT AND FIRING PIN SAFEIIY.

mcmmsm FOR FIR5RMS Filed June 21, 19 e r INVEN'T'OR WWW BY I ATTORNEY2,824,402 Patented Feb. 25, 1958 BREECH BOLT AND FG Pihi SAFETYMECHANISM FOR FRIES Joseph F. Fischer, Grand Rapids, Mich.

Application June 21, 1956, Serial No. 592,846

14 Claims. (CI. 4270) This invention relates to improvements in safetymechanism for fire arms. The principal objects of this invention are:

First, to provide a novel safety mechanism for rifles of the Mauser typewhich safety does not interfere with the mounting of a telescopic sighton the rifle and which is mounted for easy operation on the bolt handleside of the rifle.

Second, to provide a safety mechanism for Mauser type gun actions whichwill lock the firing pin in safe position without interfering with orpreventing the removal of the bolt from the receiver of the gun.

Third, to provide a safety that locks the firing pin in safe positionregardless of the position of the bolt so that the bolt may be openedand closed to inspect the chamber of the gun without removing the safetylock of the mechanism.

Fourth, to provide a firing pin safety lock with an operating memberthat interlocks with the bolt lock of a Mauser type rifle to hold thebolt in closed, locked position and the firing pin in cocked, lockedposition as when the gun is double locked for rough handling ortransportation through brush or in a saddle Scabbard.

Fifth, to provide a bolt and firing pin lock mechanism in which movementof the firing pin lock to firing position automatically moves the boltlock to unlocked position.

Sixth, to provide a firing pin lock for a Mauser type gun action whichis extremely simple and silent in operation and which is relativelyinexpensive to incorporate in the bolt assembly either as initialconstruction or as an attachment to existing guns.

Other objects and advantages of the invention will be apparent from aconsideration of the following description and claims. The drawings, ofwhich there is one sheet, illustrate a highly practical form of thesafety mechanism.

Fig. 1 is a fragmentary side elevational view of the rear end of thereceiver of a Mauser type rifle action with the bolt having the safetymechanism of the invention assembled in the receiver in cocked firingposition.

Fig. 2 is an enlarged fragmentary rear elevational view of the receiverand bolt with the safety in first intermediate locked position. 1

Fig. 3 is a fragmentary transverse cross sectional view through the boltand safety taken along the plane of the line 33 in Fig. 4 with thesafety in a first or intermediate locked position corresponding to theposition shown in Fig. 2.

Fig. 4 is a fragmentary top plan view of the receiver and bolt partiallybroken away in horizontal section along the plane of the broken line 4-4in Fig. 2 and showing the safety in double safe locked position with thebolt locked in the receiver.

Fig. 5 is a fragmentary transverse cross sectional view taken along theplane of the line 5-5 in Fig. 2.

The gun action to which the safety mechanism of the invention is appliedis the familiar type of Mauser rifle which is well known so no attemptwill be made to disclose or describe in detail the construction of thegun action except as it cooperates with the safety mechanism of theinvention. 1 in which the bolt 2 is rotatably and reciprocably mountedfor loading and cocking the gun action. The bolt includes the familiarbolt handle 3 that projects rigidly from the right side of the actionfor rotating the bolt in the receiver to unlock the bolt and cam itrearwardly. Reciprocably mounted within the boltZ is a firing pin 4 thatis spring pressed forwardly to fire the gun in the well known manner.The rear end of the firing pin 4 carries a depending rib 5 with a notchtherein that is engaged by the sear 6 of the trigger mechanism tocontrol the firing of the gun. The rear end of the firing pin 4 isslidably and non-rotatably received in the bolt sleeve 7 which embracesthe rear end of the tubular bolt and within which the bolt rotates toeffect cocking of the firing pin. The bolt sleeve 7 has a flattedundersurface 8 that non-rotatably engages the rear end of the receiverin the well known manner.

As is standard in Mauser type gun actions the rear end of the firing pin4 is annularly grooved as at 9 within the bolt sleeve 7 to provide asafety lock shoulder 10.

The upper portion of the bolt sleeve 7 is axially bored The standard butin this lock assembly a new bolt lock pin 12 is substituted. The pin 12is reciprocable in the sleeve and projects to the bolt lock button 13 onthe rear end of the sleeve. The rear end of the bolt 2 as currently andpreviously manufactured already has a peripheral notch 14 cut therein.In the standard Mauser this notch coacts with the rotary bolt lock pinbut in this assembly it registers with the bolt lock pin 12 when thebolt is'in closed locked position in the receiver. By pressing forwardlyon the bolt lock button 13 the pin 12 enters the notch 14 and preventsrotation of the bolt in the receiver and therefore prevents removal ofthe bolt or cocking ofthe firing pin. A look screw 15 prevents rotationof the bolt lock pin 12.

The bolt lock pin 12 cannot control the trigger action or the firing pinand it is possible to fire the gun with the bolt locked unless there isother safety mechanism provided. For this purpose the present inventionprovides a small solid block of metal 16 that is secured as by thesilver solder indicated at 17 along the right side of the bolt sleeve 7.The block 16 and the adjacent portion of the bolt sleeve aretransversely bored as at 18 to receive the short safety pin 19 having arounded inner end projected into the path of the locking shoulder 10 onthe firing pin 4 when the firing pin is cocked. in order to selectivelycontrol the position of the safety pin 19 the block 16 is verticallybored as at 20 to receive the operating shaft 21 in intersectingrelation to the bore 18. The shaft 21 has a cutaway portion 22 forming abroad flat area which when registered with the outer end of the safetypin permits the com;lete retraction of the safety pin from the firingpin 4 and permits firing of the rifle.

The action includes generally a receiver 3 i This position of the shaft21 is the unlocked position of the shaft and the gun action andcorresponds to the dotted position 23A of the safety shaft shown in Fig.4. In order to conveniently rotate the shaft 22 it is provided on its'upper end with the arm 23 extending laterally to a depending fingerpiece 24 that swings along the side of the block 16. The shaft21 isfurther provided with a shallow fiatted surface 25 which when registeredwith the safety pin 19 presses the safety pin into the intermediate safeposition shown in Fig. in which the firing pin can not be released bythe trigger and in which the gun action is in safe condition. Theintermediate safe position of the safety and the actuating arm 23corresponds to the dotted position 238 appearing in Fig. 4. The shallowfiat 25 not only locks the safety pin 19 but forms a detent surface thatis readily felt in the finger pass 24 as the safety mechanism is rotatedto intermediate safe position. The marksman is thus advised that thefinger piece has been moved fully from firing position 23A to safeposition 233 or vice versa.

In order to interlock the firing pin safety lock with the bolt lock ofthe action the bolt lock button 13 is provided with a laterally anddownwardly inclined interlock pin 26 that projects into the plane of theoperating arm 23 of the safety mechanism. The inner end of the operatingarm 23 is provided with a concentric arcuate portion 27 that interceptsand prevents forward locking motion of the bolt locking pin 12 and theinterlocking pin 26 when the safety mechanism is in off or firingposition. The actuating arm 23 is provided with a laterally openingnotch 28 that opens to receive the interlock pin 26 when the safety isin intermediate safe position corresponding to position 233 in Fig. 4.Thus in the bolt closed cocked position of the gun action the safety canbe moved to intermediate safe position and the bolt lock member advancedto lock the bolt. In order to further lock the gun action for roughhandling or transporting through brush or in a scabbard, the actuatingarm 23 and the finger piece 24 can be rotated to a full rearwardlydirected position as shown in full lines in Fig. 4 in which case therear end of the notch 28 will engage and prevent accidental retractionof the bolt lock pin 12. This is the full or double locked position ofthe safety mechanism. In this full locked position of the safety therounded portion 29 of the shaft 21 appearing in Fig. 5 engages the outerend of the safety pin 19.

It is pointed out that the action of the actuating arm 23 in moving fromeither of the locked positions to firing position automaticallydisengages the bolt lock pin 12 because the forward end of the notch 28cams the interlock pin 26 rearwardly to unlock the bolt as the safety ismoved to unlocked firing position. The finger piece 24.- of the safetyactuating member is conveniently located along side of the bolt sleevenear the bolt operating handle 23 and the trigger mechanism where it canbe operated by the thumb of either right or left handed marksmen. Thecamming action of the flatted surfaces on the shaft 21 provides positivelocking movement of the safety pin 19 with a minimum of effort on thepart of the marksman. The position of the safety mechanism in all of itsadjusted positions is below the top of the bolt sleeve so as not tointerfere with any auxiliary sights mounted on the gun action. Theposition of the safety mechanism also balances the appearance of thebolt sleeve by occupying the area opposite the housing for the spring 30that presses the locking pin 31 ofthe bolt sleeve forwardly intoengagement with the rear end of the bolt to non-rotatably lock thesleeve to the bolt as is familiar in the Mauser type of bolt. The safetyoperating shaft 21 is retained in the block 16 by a lock screw 32threaded through the rear of the block into the groove 33 in the lowerend of the shaft.

Having thus described the invention, what is claimed as new and isdesired to be secured by Letters Patent is:

. l. A safety mechanism for a fire arm of the Mauser type having a boltslidably and rotatably mounted in a 4 receiver and a firing pinreciprocably mounted within the bolt with a bolt sleeve positionedaround the rear of the bolt and non-rotatably engaged with the receiver,said safety mechanism comprising a block fixedly secured as anattachment to the side of said bolt sleeve, a safety locking pinextending through the side of said sleeve and having its outer endreceived in a transverse bore in said block, an upright bore in saidblock intersecting said transverse bore, a shaft journaled in saidupright bore and engageable with the outer end of said pin, a retainingscrew threaded in said block and engaged in a groove in said shaft, saidshaft having a cutaway portion permitting retraction of said safety pinfrom the inside of said sleeve and a fiatted portion engageable with theend of said pin in the intermediate safe position of said shaft toproject said safety pin into said sleeve, said firing pin having asafety groove the end of which is engaged with said safety pin in thesafe position of the pins, an arm secured to the top of said shaft andprojecting laterally to a downturned finger piece at the side of saidblock, said bolt having a notch 'in the periphery of its rear endlocated within said sleeve, a bolt lock pin reciprocally andnon-rotatably mounted in said sleeve and projecting from the rear end ofthe sleeve, said bolt lock pin being receivable in said notch in thelocked position of said bolt, and an interlock pin projecting from I therear end of said bolt lock pin into the path of the arm on said shaft,said arm having a rounded inner end cammingly engageable with saidinterlock pin to retract said bolt lock pin when said arm and saidfinger piece are moved forwardly to register the cutaway portion on saidshaft with said safety pin to condition the mechanism for firing, saidarm having a notch adjacent said rounded end receiving said interlockpin when said arm and finger piece are rotated rearwardly to preventretraction of said bolt locking pin from bolt locking position when saidshaft is in a double safe position rotated rearwardly from saidintermediate safe position with a rounded portion of its surface engagedwith the outer end of said safety pin and holding it in lockingengagement with said firing pin.

2. A safety mechanism for a fire arm of the Mauser type having a boltslidably and rotatably mounted in a; receiver and a firing pinreciprocably mounted within the bolt with a bolt sleeve positionedaround the rear of the bolt and non-rotatably engaged with the receiver,said safety mechanism comprising a block fixedly secured to the side ofsaid bolt sleeve, a safety locking pin extending through the side ofsaid sleeve and having its outer end received in a transverse bore insaid block, an up right bore in said block intersecting said transversebore, a shaft journaled in said upright bore and engageable with theouter end of said pin, said shaft having a cutaway portion permittingretraction of said safety pin from the inside of said sleeve and aflatted portion engageable with the end of said pin in the intermediatesafe position of said shaft to project said safety pin into said sleeve,said firing pin having a safety groove the end of which is engaged withsaid safety pin in the safe position of the pins, an arm secured to thetop of said shaft and projecting laterally to a finger piece at the sideof said block, said bolt having a notch in the periphery of its rear endlocated within said sleeve, a bolt lock pin reciprocally andnon-rotatably mounted in said sleeve and projecting from the rear end ofthe sleeve, said boit lock pin being receivable in said notch in thelocked position of said bolt, and an interlock pin projecting from thereap end of said bolt lock pin into the path of the arm on said shaft,said arm having an inner end cammingly engageable with said interlockpin to retract said bolt lock pin when said arm and said finger pieceare moved forwardly to register the cutaway portion on said shaft withsaid safety pin to condition the mechanism for firing, said arm having anotch adjacent said end receiving said interlock pin when said arm andfinger piece are rotated rearwardly to prevent retraction of said boltlocking pin from bolt locking position when said shaft is in a doublesafe position rotated rearwardly from said intermediate safe positionwith a portion of its surface engaged with the outer end of said safetypin and holding it in locking engagement with said firing pin.

3. A safety mechanism for a fire arm of the Mauser type having a boltslidably and rotatably mounted in a receiver and a firing pinreciprocably mounted within the bolt with a bolt sleeve positionedaround the rear of the bolt and non-rotatably engaged with the receiver,said safety mechanism comprising a block on the side of said boltsleeve, a safety locking pin extending through the side of said sleeveand having its outer end received in a transverse bore in said block, anupright bore in said block intersecting said transverse bore, a shaftjournaled in said upright bore and engageable with the outer end of saidsafety pin, said shaft having a cutaway portion permitting retraction ofsaid pin from the inside of said sleeve and a flatted portion engageablewith the end of said safety pin in the safe position of said shaft toproject said pin into said sleeve, said firing pin having a safetygroove the end of which is engaged with said safety pin in the safeposition of the pins, an arm secured to the top of said shaft andprojecting laterally to a finger piece at the side of said block, saidbolt having a notch in the periphery of its rear end located within saidsleeve, a bolt lock pin reciprocally and non-rotatably mounted in saidsleeve and projecting from the rear end of the sleeve, said bolt lockpin being receivable in said notch in the locked position of said bolt,and an interlock pin projecting from the rear end of said bolt lock pininto the path of the arm on said shaft, said arm having a notch thereinreceiving said interlock pin when said arm and finger iece are rotatedrearwardly to prevent retraction of said bolt locking pin from boltlocking position when said shaft is in double safe position with aportion of its surface engaged with the outer end of said safety pin andholding said safety pin in firing pin locking position.

4. A safety mechanism for a fire arm of the Mauser type having a boltslidably and rotatably mounted in a receiver and a firing pinreciprocably mounted within the bolt with a bolt sleeve positionedaround the rear of the bolt and non-rotatably engaged with the receiver,said safety mechanism comprising a block on the side of said boltsleeve, a safety locking pin extending through the side of said sleeveand having its outer end received in a transverse bore in said block, anupright bore in said block intersecting said transverse bore, a shaftjournaled in said upright bore and engageable with the outer end of saidsafety pin, said shaft having a cutaway portion permitting retraction ofsaid safety pin from the inside of said sleeve and a portion engageablewith the end of said pin in the safe position of said shaft to projectsaid pin into said sleeve, said firing pin having a safety groove theend of which is engaged with said safety pin in the safe position of thepins, an arm secured to the end of said shaft and projecting laterallyto a finger piece at the side of said block, said bolt having a notch inthe periphery of its rear end located within said sleeve, a bolt lockpin reciprocally and non-rotatably mounted in said sleeve and projectingfrom the rear end of the sleeve, said bolt lock pin being receivable insaid notch in the locked position of said bolt, and an interlock pinprojecting from the rear end of said bolt lock pin into the path of thearm on said shaft, said arm having a notch therein receiving saidinterlock pin when said arm and finger piece are rotated rearwardly toprevent retraction of said bolt locking pin from bolt locking positionwhen said shaft is in double safe position with a portion of its surfaceengaged with the outer end of said safety pin and holding said safetypin in firing pin locking position.

5. A safety mechanism for a fire arm of the Mauser type having a boltslidably and rotatably mounted within the bolt with a bolt sleevepositioned around the rear of do i the'boltand firing pin andnon-rotatably engaged with thereceivensaid' safety mechanism comprisinga safety locking'pin extending through the side of said sleeve andhaving its outer end received in a transverse bore in said sleeve, anupright bore intersecting said transverse bore, a shaft journaled insaid upright bore and engageable with the outer end of said safety pin,said shaft having a cutaway portion permitting retraction of said safetypin from the inside of said sleeve and a flatted portion engageable withthe endof said pin in the safe position of said shaft to project saidpin into said sleeve, said firing pin having a safety groove the end ofwhich is engaged with said safety pin in the safe position of the pins,an arm secured to said shaft and projecting laterally to a finger pieceat the side of said sleeve, a bolt lock in said sleeve and engageablewith said bolt in the locked position of said bolt, and an interlockmember on said bolt lock extending into the'path of the arm on saidshaft, said arm having a first portion camrningly engageable with saidinterlock member to retract said bolt lock when said arm and said fingerpiece are moved forwardly to register the cutaway portion on said shaftwith said safety pin to condition the mechanism for firing, said armhaving a second portion locking said interlock in bolt locking positionwhen said arm and finger piece are rotated rearwardly to double safeposition with another portion of its surface engaged with the outer endof said safety pin to hold said safety pin in firing pin lockingposition.

6. A safety mechanism for a fire arm of the Mauser type having a boltslidably and rotatably mounted within the bolt with a bolt sleevepositioned around the rear of the bolt and firing pin and non-rotatablyengaged with the receiver, said safety mechanism comprising a safetylocking pin extending through'the side of said sleeve and having itsouter end received in a transverse bore in said sleeve, an'upright boreintersecting said transverse bore, a shaft journaled in said uprightbore and engageable with the outer end of said safety pin, said shafthaving a cutaway portion permitting retraction of said safety pinfrom'the inside of said sleeve and a portion engageable with the end ofsaid pin in the safe position of said shaft to project said pin intosaid sleeve, said firing pin having a safety groove the end of which isengaged with said safety pin in the safe position of the pins, an armsecured to said shaft and projecting laterally to a finger piece at theside of said sleeve, a bolt lock in said sleeve and engageable with saidbolt in the locked position of said bolt, and an interlock member onsaid bolt lock extending into the path of the arm on said shaft, saidarm having a first portion cammingly engageable with said interlockmember to retract said bolt lock when said arm and said finger piece aremoved to register the cutaway portion on said shaft with said safety pinto condition the mechanism for firing, said arm having a second portionlocking said interlock in bolt locking position when said arm and fingerpiece are rotated to safe position with another portion of its surfaceengaged with the outer end of said safety pin to hold said safety pin infiring pin locking position.

7. In a fire arm having a bolt rotatable between locked firing positionand unlocked retractable position and a firing pin reciprocable in saidbolt and spring pressed forwardly to firing position, safety mechanismcomprising a sleeve non-rotatably mounted on said fire arm around therear of said bolt and said firing pin, a safety pin mounted in saidsleeve in transversely extending relation to said firing pin andprojectable into engagement with a shoulder on said firing pin in thesafe positions of the pins, an actuating shaft rotatably mounted in saidsleeve in transversely extending intersecting relation to the path ofsaid safety pin and in transversely extending off-set relation to theaxis of said bolt, said shaft having a first portion cut away to permitretraction of said safety pin to firing position and a secondintermediate flatted portion engageable in an intermediate rotated safeposition with the outer end of said safety pin to advance the safety pininto safe position, said shaft having a third rounded portion engageablewith said safety pin in a further rotated double safe position of theshaft to hold said safety pin in safe position, and a finger piece onsaid shaft to rotate the same, said fire arm having a bolt lock memberinterlocked with said finger piece on said shaft in the locked positionof said bolt lock and the double safe position of the shaft and saidfinger piece, said finger piece having a portion cammingly engageablewith said bolt lock to move the bolt lock to unlocked position uponrotation of the finger piece to safe position.

8. In a fire arm having a bolt rotatable between locked firing positionand unlocked retractable position and a firing pin reciprocable in saidbolt and spring pressed forwardly to firing position, safety mechanismcomprising a sleeve non-rotatably mounted on said fire arm around therear of said bolt and said firing pin, a safety pin mounted in saidsleeve and projectable into engagement with a shoulder on said firingpin in the safe positions of the pins, an actuating shaft rotatablymounted in said sleeve in intersecting relation to the path of saidsafety pin and in transversely extending off-set relation to the axis ofsaid bolt, said shaft having a first portion cut away to permitretraction of said safety pin to firing position and a secondintermediate flatted portion enggaeable in an intermediate rotated safeposition with the outer end of said safety pin to advance the safety pininto safe position, said shaft having a third portion engageable withsaid safety pin in a further rotated double safe position of the shaftto hold said safety pin in safe position, and a finger piece on saidshaft to rotate the same, said fire arm having a bolt lock memberinterlocked with said shaft in the locked position of said bolt lock andthe double safe position of the shaft and said finger piece.

9. In a fire arm having a bolt rotatable between locked firing positionand unlocked retractable position and a firing pin reciprocable in saidbolt and spring pressed forwardly to firing position, safety mechanismcomprising a sleeve non-rotatably mounted on said fire arm around therear of said bolt and said firing pin, a safety pin mounted in saidsleeve in transversely extending relation to said firing pin andprojectable into engagement with a shoulder on said firing pin in thesafe positions of the pins, an actuating shaft rotatably mounted in saidsleeve in transversely extending intersecting relation to the path ofsaid safety pin and in off-set relation to the axis of said bolt, saidshaft having a first portion cut away to permit retraction of saidsafety pin to firing position and a second portion engageable in arotated safe position with the outer end of said safety pin to advancethe safety pin into safe position, and a finger piece on said shaft torotate the same, said fire arm having a bolt lock member, said bolt lockmember being blocked from engagement with said bolt by said finger pieceon said shaft in the firing position of the shaft and said finger piece,said finger piece having a portion cammingly engageable with said boltlock to move the bolt lock to unlocked position upon rotation of thefinger piece to firing position.

10. In a fire arrn having a bolt rotatable between locked firingposition and unlocked retractable position and a firing pin reciprocablein said bolt and spring pressed forwardly to firing position, safetymechanism comprising a sleeve non-rotatably mounted on said fire armaround the rear of said bolt and said firing pin, a safety pin mountedin said sleeve in transversely extending relation to said firing pin andprojectable into engagement with a shoulder on said firing pin in thesafe positions of the pins, an actuating shaft rotatably mounted in saidsleeve in transversely extending intersecting relation to the path ofsaid safety pin and in off-set relation to the axis of said bolt, saidshaft having a first portion cut away to permit retraction of saidsafety pin to firing position and a second portion engageable in arotated safe position with the outer end of said safety pin to advancethe safety pin into safe position, and a finger piece on said shaft torotate the same.

11. In a fire arm having a bolt rotatable between locked firing positionand unlocked retractable position and a firing pin reciprocable in saidbolt and spring pressed forwardly to firing position, safety mechanismcomprising a sleeve non-rotatably mounted on said fire arm around therear of said bolt and said firing pin, a safety pin mounted in saidsleeve in transversely extending relation to said firing pin andprojectable into engagement with a shoulder on said firing pin in thesafe positions of the pins, an actuating shaft rotatably mounted in saidsleeve in transversely extending intersecting relation to the path ofsaid safety pin and in off-set relation to the axis of said bolt, saidshaft having a first portion cut away to permit retraction of saidsafety pin to firing position and a second portion engageable in arotated safe position with the outer end of said safety pin to advancethe safety pin into safe position, and a finger piece on said shaft torotate the same, said fire arm having a bolt lock member, said bolt lockmember being blocked from engagement with said bolt by said shaft in thefiring position of the shaft and said finger piece.

12. In a fire arm having a bolt rotatable between locked firing positionand unlocked retractable position and a firing pin reciprocable in saidbolt and spring pressed forwardly to firing position, safety mechanismcomprising a sleeve non-rotatably mounted on said fire arm around therear of said bolt and said firing pin, a safety pin mounted in saidsleeve and projectable into engagement with a shoulder on said firingpin in the safe positions of the pins, an actuating shaft rotatablymounted in said sleeve in transversely extending intersecting relationto the path of said safety pin and in off-set relation to the axis ofsaid bolt, said shaft having a first radially recessed portion to permitretraction of said safety pin to firing position and a secondintermediate fiatted portion engageable in an intermediate rotated safeposition with the outer end of said safety pin to advance the safety pininto safe position, said shaft having a third portion engageable withsaid safety pin in a further rotated double safe position of the shaftto hold said safety pin in safe position, and a finger piece on saidshaft to rotate the same.

13. A safety attachment for a fire arm of the Mauser type having a boltslidably and rotatably mounted in a receiver and a firing pinreciprocably mounted within the bolt with a bolt sleeve positioned alongthe rear of the bolt and non-rotatably engaged with the receiver, saidsafety attachment comprising a block adapted to be fixedly secured tothe side of said bolt sleeve, a safety locking pin adapted to extendthrough the side of said sleeve and having its outer end received in atransverse bore in said block, an upright bore in said blockintersecting said transverse bore, a shaft journalcd in said uprightbore and engageable with the outer end of said safety pin, a retainingscrew threaded in said block and engaged in a groove in said shaft, saidshaft having a radially recessed portion permitting retraction of saidsafety pin from the inside of said sleeve and a flatted portion andfurther rotated double lock portion engageable with, the end of saidsafety pin in the safe position of said shaft to project said safety pininto said sleeve, said firing pin having a safety groove the end ofwhich is engaged with said safety pin in the safe position of the pins,and an arm secured to the top of said shaft and projecting laterally toa downturned finger piece at the side of said block.

14. A safety attachment for a fire arm of the Mauser type having a boltslidably and rotatably mounted in a receiver and a firing pinreciprocably mounted within the bolt with a bolt sleeve positioned alongthe rear of the bolt and non-rotatably engaged with the receiver, saidsafety attachment comprising a block adapted to be 9 fixedly secured tothe side of said bolt sleeve, a safety locking pin adapted to extendthrough the side of said sleeve and having its outer end received in atransverse bore in said block, an upright bore in said blockintersecting said transverse bore, a shaft journaled in said uprightbore and engageable with the outer end of said safety pin, said shafthaving a radially recessed portion permitting retraction of said safetypin from the inside of said sleeve and an intermediate portion andfurther rotated double lock portion engageable with the end of saidsafety pin in the safe position of said shaft to project said safety pininto said sleeve, said firing pin having a safety groove the end ofwhich is engaged with said safety pin in the safe position of the pins,and an arm secured to said shaft and projecting laterally to a fingerpiece at the side of said block.

References Cited in the file of this patent UNITED STATES PATENTS2,648,926 Ackerson Aug. 18, 1953 FOREIGN PATENTS 12,619 Great Britain1913

